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<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script src="./vue.js"></script>
</head>
<body>
    <div id="app">
    </div>

    <script>
        console.log(88)
        let app = new Vue({
            data:{
                message:'我是vue中的model'
            },
            render:function(createElement){
                return createElement('div',this.message);
            }
        }).$mount('#app')
        
        console.log(app.$options.render);
    </script>
</body>
</html>